公开(公告)号：US20240331934A1

公开(公告)日：2024-10-03

申请号：US18596729

申请日：2024-03-06

Applicant: TDK CORPORATION

Inventor： Hideaki HARATA ,  Shoichi TANI ,  Hiroki IDANI ,  Keiichi YASUHARA

IPC: H01F27/32 ,  H01F27/26 ,  H01F27/29

CPC classification number: H01F27/325 ,  H01F27/266 ,  H01F27/29

Abstract: A coil device, including a bobbin including a tubular part, a wire wound around the tubular part, a cover capable of being installed on the bobbin, and a core including a middle leg part. The cover includes an end wall having an end wall opening arranged at an end part of the tubular part so as to connect with a through hole of the tubular part, and a first engagement part engaging with the bobbin. The middle leg part is arranged so as to be inserted into the end wall opening and the through hole.